Patent DE445364C successfully refreshed from Google Patents.
DE445364C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of pressure pipes with sheet metal pipe lying between two layers of concrete
Assignee: Individual
•
Filing: 1926-04-13
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Granted: 1927-06-03
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Expires: 1946-04-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-08 04:19
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/56; B28B21/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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